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Letters Patent No. 90,012, dated Ma/y 11, 1869.

IMPRovED CARBURETTER.

The Schedule referred to in these Letters Patent and making pari: of the name.

. Be it known that I, EDMoN L. MIX, of Rochester, in the county of Monroe, and State ol' New York, have invented a new and useful Improvement in Carburet-A ters; and I do herebydeclare the following to be a full,

A clear, and exact description of the'same, sufficient to enable others skilled in the art to which the invention appertains, to fully understand and use the same, ref

erence beingr hadV tothe accompanyingdrawings, which are made a part of this specification. y l

lhe subject of tbisin'vention is an apparatus for carburetting atmospheric air, thus to produce illuminating-gas, or to impregnate gas already made, with ,hydrocarbonaceousmatter, in o'rder to enrich and increase the brilliancy of the same. y

My apparatus is of the kind in which an air-holder is made to gravitate within a water-tank, and thereby force'the enclosed air, through a conductngpipe,into

the chamber containing the hydrocarbon-liquid, which,

by the action of the air,'is vaporized,rand caused to `combine with theair in such a manner as to form an illuminating-gas; and my improvements consist, essentially,'of a tank, dividedlinto three annular concentric spaces, the outer and inner ones containing water, and the intermediate one air, for the pnrpo'se hereafter set forth, in combination 'with an annular` air-holder, and

acarburetting-vessel, arranged centrally in theinterior thereof, and in other features accessory thereto, as,hereinafter-described. l f

In the apparatus heretofore devised, the receptacle for the hydrocarbon-liquid, and the chamber toreceive the impregnatedair or gas, have been either separate and distinct compartments or vessels, sub

`merged or enclosedwithin lthe water-tank, or a separate carburetterpropensituated outside of and at some distance from the water-tankand air-holder. i

In my apparatus, the carburettng as well l:ts-the gas-receiving chamber,lis therinterior of acylinder, which is situated centrally within the water-tank, so as to be enclosed by water at the sides and bottom, the

The water-tank is divided into two concentric chambers, having an intermediate `air-space, to maintain an equable temperature,

. andthe air-holder consists of two `'concentric and conue'cted cylinders, adapted to the construction of the tank and carburetter. I l Figure l is a vertical centrall section of an apparatus illustrating my invention,

Figure 2 isa side elevation of the same.

Similar letters of reference indicate corresponding 4parts in the several figures.

VIn the drawings- *l A'representsian upright vessel, of cylindrical or other form, situated centrally within `a water-tank, B, and

while the intermediate apartment, B2,'contains a body of' air, which, being a poor conductor, conduces to the maintenance of an equable temperature of the oil in the central chamber or vessel A. i

Near the top of the water-tank is a tubular-conductor, b, affording communication between the apartments B' B3 ofthe water-tank.

l When it is desired to raise or lower the temperature of the oil Vin the vessel A, warm or cold Water is supplied to the inner apartment, B3, and the water which is thereby displaced, is conducted, by pipe b, into the outer apartment, B. When hot water is used, it is introduced, by means of a pipe or other suitable conductor, into the chamber B in the intervening space between the 'interior wall G ofthe air-holder, and the chamber A. Said pipe may lead i'om the kitchen or any convenient part of the dwelling, or other building in which my apparatus is used, so that it can be readily and conveniently sup plied when required. v y l a is the bottom proper of the oil-cylinder or carbu vletting-chamber A.

`Said bottom a stands somewhat above the bottom ofthe water-tank, and the intervening space communicates with the inner apartment of the water-tank, through the perforations al, in the lower extremity of thecylin'der A, so that the water in the tank has acbellows or air-pump, may be applied to said `pipe D?,

and made to supply air to the vinteriorof the` carburetting-chamber A, when there is an excess of' the carbonaceous vapor therein.

O O is the air-holder, consisting of two concentric cylinders, united at the top, designated, respectively,

A bythe letters O C. f

The water-spaces ofthe water-tank being properly charged with water, the air-holder is applied, so that the lower edge of the inner cylinder O shall be submerged in theapartment B, and that of the outer cylinder O, in the apartment B1.

The space between the cylinders G Q0' is tightly closed at top bythe metal which connects said cylinders, but at bottom said space is of course open, and thecylinders are of course disconnected.

`As the air-holder descends, it forces its enclosed air downward, through the pipeE, which discharges it into the cylinder or carburetter A, at a point between the bottoni aand a delecting-disk, a, which is so supported that an annular space, ai, is left be/tween it andthe sides of the cylinder A. ai' is a foraminated diaphragm, supported above the disk a, and employed to divide the ascending air-into numerous fine jet`s,'wl1ereby the hydrocarbon-liquid is caused to effectively mingle with said air.

The disk ct detlects the air to the sides of the cylinder A, when it first enters the same, causing it to diffuse itself equally throughout the cylinder, and preventing it from concentrating at the centre.

The air ascends through the body of oil in the carburetter A, and being thus charged with the hydrocarbon-vapor, 'passes off, in the gas-pipe F, tothe point where it is consumed.

The air-holder may be properly coinxterbalaneed b v the suspended weight G.

When the air-holder has completed its downward movement, it is recharged with air, through the pipe H, and said holder is either raised by pumping air into it, through pipe H, and apartment B2, or by pulling down the weight G by hand, in which latter case it is only necessary to open the outer end oi' pipe H, and allow the air to enter.

The pipe H may be closed, while the apparatus is in operation, by a hydraulic joint or valve, I, which is the preferred means of effecting the closure when the air-holder is raised by hand.

Then the air-holder is to be raised by pumping in air, a hose is applied to a tubular neck, i, on the external shell ofthe water-valve, or directly on the pipe H, said neck being closed by a plug or cock, when the apparatus isin operation,

The water in the tank B maybe drawn ofi' through the cock J when desired.

It will be seen that this apparatus possesses several important advantages over those heretofore devised.

rlhe described mode of' adapting a single cylinder or vessel A, to form the oil-receptacle and gas-chamber entire, together with the method of arranging the same Within the tank, eonduees to cheapness and compactness.

The ca'rburetter A is exposed, at top, to the external air, which eects the condensation of such vapor as may have a tendency so to do, and thus permit onlyperfcctvapor to pass into the gas-pipe, condensation in the latter being thereby prevented.

By surrounding the earburetter with two distinct bodies ot' water, separated by an air-space, as vdescribed, the contents oi' the carburetting-cliamber are preserved at a proper and cquable temperature, and are eiileet-ually protected against fire.

The arrangement of the carburetting-vessel A, within the open well of the annular air-holder, enables it to be inspected and removed without removing the air-holder from its position.

I do not claim a carburettiiig-vessel, immersed in or surrounded by water, nor the employment of deflecting-plates in the czu'buretting-liquid; but

I claim as new herein, and desire to secure ters Patent- 1. lhe'combination and arrangement of the earburetting-vessel A with the cistern B3 and annular airholder G, so that its sides and bottom are surrounded with water, while its upper extremity is open to the atmosphere, and accessible through the central space of the air-holder, t'or inspection, and the application of warming-agents, when required, substantially as set forth.

2. A carbnretti11g-apparatus, consisting of the concentric annular compartments B B, and intervening ail-space B2, the annular air-holder C C', and the carburetting-vessel A, combined, arranged, and operating substantially as shown and described.

3; The arrangement, in combination with r.the central carburetting-vessel A, of the annular air-space B, intervening between the two annular water-chambers B and B, substantially as and for the purpose set forth.

To the above specilication of my improvement in carburetters, I have signed my name, this 29th day of J nl v, 1868.

\Vitnesses: A

` CHAs. D. SMITH,

J oHN A. WIEDERSHEIM.

by Let- EDMON L. MIX. 

